This is the 160th most frequent Slovak word.
petra
"Petra" is a Slovak female given name, equivalent to "Petra" in English.
Here, 'Petra' is used as a proper noun, referring to a person's name.
Petra je moja blízka priateľka.
Petra is my close friend.
In this instance, 'Petru' refers to the name of an archaeological site in Jordan, used in its accusative form due to the verb 'visit'.
Navštívili sme starobylé miesto Petru v Jordánsku.
We visited the ancient site Petra in Jordan.
Here, 'Petra' means 'of the stone' as a genitive form of the word 'kameň,' referring to a relation or belonging.